Air sparging: Air-water mass transfer coefficients
نویسندگان
چکیده
منابع مشابه
Turbulent Events and Gas-Side Mass Transfer Coefficients in a Wavy Air-Water Stratified Flow
Turbulence structure on the gas side of a wavy stratified flow was experimentally investigated in a near horizontal 18.7 cm (H) 10 cm (W) 5.5m (L) rectangular duct.By applying the Variable Interval Time Averaging (VITA) technique to the hot wire anemometer measurements frequency of occurrence of turbulent events were detected near the air-water interface. Experimental results showed that fr...
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Air sparging in conjunction with soil vapor extraction is one of many technologies currently being applied for the remediation of groundwater contaminated with volatile organic compounds (VOCs). Mass transfer at the air-water interface during air sparging is affected by various soil and VOC properties. In this study with a single air-channel apparatus, mass transfer of VOCs was shown to occur w...
متن کاملturbulent events and gas-side mass transfer coefficients in a wavy air-water stratified flow
turbulence structure on the gas side of a wavy stratified flow was experimentally investigated in a near horizontal 18.7 cm (h) 10 cm (w) 5.5m (l) rectangular duct.by applying the variable interval time averaging (vita) technique to the hot wire anemometer measurements frequency of occurrence of turbulent events were detected near the air-water interface. experimental results showed that freque...
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Accidental spillages or leakages of organic compound within the environment, released as non-aqueous phase liquid (NAPL), result a widespread contamination of subsurface soils and groundwater. In such multi-phase flow system in porous media, interphase mass transfer mainly governs the overall transport processes that occur in the interface between the two fluid phases. Air-liquid interfacial ar...
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This paper presents the results of laboratory experiments that investigate the removal of volatile organic compounds from saturated soils through the use of air sparging. Three series of experiments were performed in a column test apparatus using two different soils to represent actual field conditions, namely, a fine gravel and a medium to fine Ottawa sand (both obtained from sources near Chic...
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ژورنال
عنوان ژورنال: Water Resources Research
سال: 1998
ISSN: 0043-1397
DOI: 10.1029/98wr02533